Home / 709,842.20-1,064,763.30-658,520.60

Finding the Fourth Proportional to 709,842.20, 1,064,763.30 and 658,520.60

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Solution

The fourth proportional to 709,842.20, 1,064,763.30 and 658,520.60 is: 987,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,842.20 : 1,064,763.30 = 658,520.60 : x
  2. Step 2: Convert to fraction form
    709,842.20/1,064,763.30 = 658,520.60/x
  3. Step 3: Cross multiply
    709,842.20x = 1,064,763.30 × 658,520.60
  4. Step 4: Simplify right side
    709,842.20x = 701,168,567,173.98
  5. Step 5: Solve for x
    x = 701,168,567,173.98/709,842.20
  6. Step 6: Final answer
    x = 987,780.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.